Question

if triangle ABC right angled at C AB is equal to 10 unit BC is equal to 8 units and angle ABC is equal to verify the identity is first cos square theta minus cot square theta is equal to 1 second 1 + tan squared theta is equal to sec square theta​

Answer 1

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Answer 2

Answer:

Trigonometric Identities

In algebraic form, an identity in x is satisfied by some particular value of x. For example (x+1)2=x2+2x+1 is an identity in x. It is satisfied for all values of x. The same applies to trigonometric identities also.

The equations can be seen as facts written in a mathematical form, that is true for “right angle triangle”.  Any trigonometric identity dealing with any variable of a right angle triangle will be satisfied by any value within an acceptable range of that variable.

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